C++ (Cpp) memcpy_short_addr примеры использования

Пример #1

Файл: yv12extend.c Проект: kevleyski/FFmpeg

// Copies the source image into the destination image and updates the
// destination's UMV borders.
// Note: The frames are assumed to be identical in size.
void aom_yv12_copy_frame_c(const YV12_BUFFER_CONFIG *src_bc,
                           YV12_BUFFER_CONFIG *dst_bc, const int num_planes) {
#if 0
  /* These assertions are valid in the codec, but the libaom-tester uses
   * this code slightly differently.
   */
  assert(src_bc->y_width == dst_bc->y_width);
  assert(src_bc->y_height == dst_bc->y_height);
#endif

  assert((src_bc->flags & YV12_FLAG_HIGHBITDEPTH) ==
         (dst_bc->flags & YV12_FLAG_HIGHBITDEPTH));

  if (src_bc->flags & YV12_FLAG_HIGHBITDEPTH) {
    for (int plane = 0; plane < num_planes; ++plane) {
      const uint8_t *plane_src = src_bc->buffers[plane];
      uint8_t *plane_dst = dst_bc->buffers[plane];
      const int is_uv = plane > 0;

      for (int row = 0; row < src_bc->heights[is_uv]; ++row) {
        memcpy_short_addr(plane_dst, plane_src, src_bc->widths[is_uv]);
        plane_src += src_bc->strides[is_uv];
        plane_dst += dst_bc->strides[is_uv];
      }
    }
    aom_yv12_extend_frame_borders_c(dst_bc, num_planes);
    return;
  }
  for (int plane = 0; plane < num_planes; ++plane) {
    const uint8_t *plane_src = src_bc->buffers[plane];
    uint8_t *plane_dst = dst_bc->buffers[plane];
    const int is_uv = plane > 0;

    for (int row = 0; row < src_bc->heights[is_uv]; ++row) {
      memcpy(plane_dst, plane_src, src_bc->widths[is_uv]);
      plane_src += src_bc->strides[is_uv];
      plane_dst += dst_bc->strides[is_uv];
    }
  }
  aom_yv12_extend_frame_borders_c(dst_bc, num_planes);
}

Пример #2

Файл: yv12extend.c Проект: 93i/godot

// Copies the source image into the destination image and updates the
// destination's UMV borders.
// Note: The frames are assumed to be identical in size.
void vp8_yv12_copy_frame_c(const YV12_BUFFER_CONFIG *src_ybc,
                           YV12_BUFFER_CONFIG *dst_ybc) {
  int row;
  const uint8_t *src = src_ybc->y_buffer;
  uint8_t *dst = dst_ybc->y_buffer;

#if 0
  /* These assertions are valid in the codec, but the libvpx-tester uses
   * this code slightly differently.
   */
  assert(src_ybc->y_width == dst_ybc->y_width);
  assert(src_ybc->y_height == dst_ybc->y_height);
#endif

#if CONFIG_VP9_HIGHBITDEPTH
  if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) {
    assert(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH);
    for (row = 0; row < src_ybc->y_height; ++row) {
      memcpy_short_addr(dst, src, src_ybc->y_width);
      src += src_ybc->y_stride;
      dst += dst_ybc->y_stride;
    }

    src = src_ybc->u_buffer;
    dst = dst_ybc->u_buffer;

    for (row = 0; row < src_ybc->uv_height; ++row) {
      memcpy_short_addr(dst, src, src_ybc->uv_width);
      src += src_ybc->uv_stride;
      dst += dst_ybc->uv_stride;
    }

    src = src_ybc->v_buffer;
    dst = dst_ybc->v_buffer;

    for (row = 0; row < src_ybc->uv_height; ++row) {
      memcpy_short_addr(dst, src, src_ybc->uv_width);
      src += src_ybc->uv_stride;
      dst += dst_ybc->uv_stride;
    }

    vp8_yv12_extend_frame_borders_c(dst_ybc);
    return;
  } else {
    assert(!(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH));
  }
#endif

  for (row = 0; row < src_ybc->y_height; ++row) {
    memcpy(dst, src, src_ybc->y_width);
    src += src_ybc->y_stride;
    dst += dst_ybc->y_stride;
  }

  src = src_ybc->u_buffer;
  dst = dst_ybc->u_buffer;

  for (row = 0; row < src_ybc->uv_height; ++row) {
    memcpy(dst, src, src_ybc->uv_width);
    src += src_ybc->uv_stride;
    dst += dst_ybc->uv_stride;
  }

  src = src_ybc->v_buffer;
  dst = dst_ybc->v_buffer;

  for (row = 0; row < src_ybc->uv_height; ++row) {
    memcpy(dst, src, src_ybc->uv_width);
    src += src_ybc->uv_stride;
    dst += dst_ybc->uv_stride;
  }

  vp8_yv12_extend_frame_borders_c(dst_ybc);
}